I think it would have been mid to late 2000s, and it must have been on channels 1-5 as we didn’t have anything else then.
It was a group of adults sent to some sort of big building where they all moved in for the duration, and they did tasks each week or something. Unfortunately we didn’t keep up with the show but I’m sure the first one was something to do with them working in stables.
A certain percentage of the participants had diagnosed mental health illnesses, and then there were professionals who would observe them all doing the tasks and try and work out who had what condition. I guess it was to try and tackle stigma and misunderstandings about MH? I think the first episode they called out one woman and said after observing her they were confident she was one of the “healthy” ones - but they were wrong, she had a diagnosis of depression, so it showed how she masked it (which was mildly amusing at the time, as I had picked up on the fact she must be masking something and was surprised they’d declared her not to have any problems).
Anyone remember this show?